You wouldn't wash your hands with just toilet paper either.

Bleach? I would hope not. This is spraying your anus, which you should avoid using soaps (or holy shit, bleach?) and only use water or specific soaps. Same with your penis, which I hope you're not washing with regular soap (or bleach)

Cheap bidet attachments only spray water, fancier models spray water and soap, and blow-dry your butt.

Though, I guess the issue here is comparing bidet to no-bidet.

The bidet is so much better than TP only, it is not even close. Instead of feeling gross, you feel glorious, is what it is.